How is a report generator used, and what is a mock-up report?
What will be an ideal response?
A report generator, also called a report writer, is a tool for designing formatted reports rapidly. Using a report generator, you can modify a report easily at any stage of the design process. When you are satisfied with the report layout, the report writer creates a report definition and program code that actually produces the report. You also can input sample field values to create a mock-up report for users to review and approve.
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Suppose we create a subclass from a class that has a method called someMethod. If we override someMethod in the subclass, is it possible to access the superclass's version of someMethod? If so, how?
What will be an ideal response?
A context free grammar is also called a ______ grammar.
Fill in the blank(s) with the appropriate word(s).
If using the MD5 hashing algorithm, what is the length to which each message is padded?
A. 32 bits B. 64 bits C. 128 bits D. 512 bits
Suppose there are an equal number of positive and negative records in the data and the decision tree classifier predicts every test record to be positive. What is the expected error rate of the classifier on the test data?
Consider the task of building a classifier from random data, where the at- tribute values are generated randomly irrespective of the class labels. Assume the data set contains records from two classes, “+” and “?.” Half of the data set is used for training while the remaining half is used for testing.